<!DOCTYPE HTML>
<html class="reftest-wait">
<body style="background-image: url(%2B9AAAAAXNSR0IArs4c6QAAADdJREFUGNNjZGD4%2F5%2BBCMDCwMDAwNDQiF9VQz0DEwORgPoKGRkY%2Fv9fe%2BM5XkXBGpID7kZiFAIAEbULDl5w%2F68AAAAASUVORK5CYII%3D); background-attachment:fixed">
<script>
function doTest() {
  var img = "%2B%2Bz9AAAAA1BMVEUA%2FwA0XsCoAAAAD0lEQVQoFWNgGAWjYGgCAAK8AAEb3eOQAAAAAElFTkSuQmCC";
  document.body.style.backgroundImage = "url(" + img + ")";
  document.documentElement.removeAttribute("class");
}
window.addEventListener("MozReftestInvalidate", doTest, false);
</script>
</body>
</html>
